Question

Please help!! Will fan and medal!!!!

(Am typing the question in the comments it may take a second)

Answer 1

Find the least common denominator for these two rational expressions.

\[\frac{ y }{ y^2-9 } \] & \[\frac{ -3y }{ y^2-4y+3 }\]

Answer 2

y/(y-3)

Answer 3

i think it 1/(y-3) if you ask for a least

Answer 4

but not totally sure :(

Answer 5

u have a common factor in numerator too

Answer 6

so it will be y/(y-3)

Answer 7

yeah but they ask for a least one

Answer 8

of rational expression

Answer 9

so should I go with y? cause I thought that 1=y ...

Answer 10

okay try with y

Answer 11

so do you have other question,mayby i will be more helpful in them :)

Answer 12

@welshfella take a look. they ask for least common denominator .and i'm stuck wich to choose: y/(y-3) or 1/(y-3)

Answer 13

@welshfella

Answer 14

Sorry my computer keeps freezing. I'm running a test now and the gonna fix it hopefully. Will you still be on around 3:40-4:00 ?

Answer 15

y^2 - 9 = (y + 3)(y - 3)
y^2 - 4y + 3 = (y - 3)(y - 1)

so LCM = ?

Answer 16

gotta go

Answer 17

http://www.virtualnerd.com/algebra-1/rational-expressions-functions/add-subtract/add-subtract-unlike-denominators/find-least-common-denominator-example

Answer 18

Hopefully that helps you @WhatEven

Answer 19

Videos kinda boring :/ sorry in advance

Answer 20

Hint: (y -3) is common to both factors

Answer 21

If there are duplicates only 1 is used to get the LCM

Answer 22

eg find LCM of 4 and 6

4 = 2*2
6 = 2*3

there are duplicate 2's

LCM = 2*2*3

Answer 23

talking to myself again....